Add the DataSpec class.

lib/dataspec.h

@@ -0,0 +1,47 @@
+#ifndef DATASPEC_H
+#define DATASPEC_H
+
+class DataSpec
+{
+public:
+    struct Location
+    {
+        unsigned track;
+        unsigned side;
+
+        bool operator == (const Location& other) const
+        { return (track == other.track) && (side == other.side); }
+
+        bool operator != (const Location& other) const
+        { return (track != other.track) || (side != other.side); }
+    };
+
+    struct Modifier
+    {
+        std::string name;
+        std::set<unsigned> data;
+
+        bool operator == (const Modifier& other) const
+        { return (name == other.name) && (data == other.data); }
+
+        bool operator != (const Modifier& other) const
+        { return (name != other.name) || (data != other.data); }
+    };
+
+public:
+    static std::vector<std::string> split(
+        const std::string& s, const std::string& delimiter);
+    static Modifier parseMod(const std::string& spec);
+
+public:
+    DataSpec(const std::string& spec)
+    { set(spec); }
+
+    void set(const std::string& spec);
+
+    std::string filename;
+    std::map<std::string, Modifier> modifiers;
+    std::vector<Location> locations;
+};
+
+#endif